Fixed Style/StringLiterals RuboCop offense

Bug: T111184
Change-Id: Ia51f271b5e06d7bbd9896634b832003d57c30900

.rubocop.yml

@@ -1,5 +1,3 @@
-inherit_from: .rubocop_todo.yml
-
 AllCops:
   StyleGuideCopsOnly: true
 
@@ -15,9 +13,8 @@ Style/Alias:
 Style/SignalException:
   Enabled: false
 
-# TODO: uncomment when the time comes
-# Style/StringLiterals:
-#  EnforcedStyle: single_quotes
+Style/StringLiterals:
+  EnforcedStyle: single_quotes
 
 Style/TrivialAccessors:
   ExactNameMatch: true

.rubocop_todo.yml

@@ -1,13 +0,0 @@
-# This configuration was generated by
-# `rubocop --auto-gen-config`
-# on 2015-09-02 17:15:05 +0200 using RuboCop version 0.33.0.
-# The point is for the user to remove these configuration records
-# one by one as the offenses are removed from the code base.
-# Note that changes in the inspected code, or installation of new
-# versions of RuboCop, may require this file to be generated again.
-
-# Offense count: 13
-# Cop supports --auto-correct.
-# Configuration parameters: SupportedStyles.
-Style/StringLiterals:
-  EnforcedStyle: double_quotes

Gemfile

@@ -1,4 +1,4 @@
-source "https://rubygems.org"
+source 'https://rubygems.org'
 
-gem "mediawiki_selenium", "~> 1.5.0"
-gem "rubocop", "~> 0.33.0", require: false
+gem 'mediawiki_selenium', '~> 1.5.0'
+gem 'rubocop', '~> 0.33.0', require: false

tests/browser/features/support/env.rb

@@ -1,4 +1,4 @@
-require "mediawiki_selenium"
+require 'mediawiki_selenium'
 
-require "mediawiki_selenium/support"
-require "mediawiki_selenium/step_definitions"
+require 'mediawiki_selenium/support'
+require 'mediawiki_selenium/step_definitions'

tests/browser/features/support/pages/does_not_exist_page.rb

@@ -12,7 +12,7 @@
 class DoesNotExistPage
   include PageObject
 
-  page_url "<%=params[:page_name]%>"
+  page_url '<%=params[:page_name]%>'
 
-  a(:create_source, text: "Create source")
+  a(:create_source, text: 'Create source')
 end

tests/browser/features/support/pages/edit_page.rb

@@ -12,7 +12,7 @@
 class EditPage
   include PageObject
 
-  text_area(:article_text, id: "wpTextbox1")
-  img(:math_image, class: "tex")
-  button(:preview, id: "wpPreview")
+  text_area(:article_text, id: 'wpTextbox1')
+  img(:math_image, class: 'tex')
+  button(:preview, id: 'wpPreview')
 end